Comparative analysis on test results of different fabric bending behavior test apparatus

In order to compare the difference in test stability of bending property and find out the relationship among different apparatus,the FAST-2 bending instrument and the automatic fabric stiffness tester were chosen to acquire bending data of fabrics.Fifteen fabrics including cotton,silk and wool fabrics were selected and the bending properties at 0°,45°,90°and 135° were tested.The coefficient of variation of bending rigidity was calculated.Then the data were processed with statistical analysis.It is found that the test stability of stiffness tester is better than that of FAST-2 bending instrument for all three types of fabric.The degree of difference from highest to lowest is silk,wool and cotton fabrics.Both of the stabilities of wool fabric tested by these two apparatus are the best among three types of fabric.The bending rigidity tested by these two apparatus has a strong positive correlation,and the correlation coefficient between them is 0.945.